20Given Paula's monthly budget, the percentage of expenses spent
on insurance can be determined by subtracting all the other
expenses from the monthly budget, which leaves you with the anoint
spent on insurance.

Excel can generate monthly income statements by typing "Income"
in cell A1 of the worksheet. Below that, enter all monthly income.
In cell A2, enter "Expenses", and then monthly expenses such as
payroll, parts, goods, etc.

Monthly expenses are the monthly average of what you spend:
thus, if you live in northern Michihan, they're higher in the
winter because of heating costs (or in Florida, airconditioning in
the summer), they're higher in December due to Christmas shopping,
etc.